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| author | David Howells <dhowells@redhat.com> | 2014-09-16 17:36:06 +0100 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2014-09-16 17:36:06 +0100 |
| commit | c06cfb08b88dfbe13be44a69ae2fdc3a7c902d81 (patch) | |
| tree | 8bc0e3794ffb426b3cbb2c0d7c2dbbd4b28e3054 /security/keys/keyring.c | |
| parent | 614d8c39014c185aa0f7254f0a470cc33fc1b284 (diff) | |
| download | linux-c06cfb08b88dfbe13be44a69ae2fdc3a7c902d81.tar.bz2 | |
KEYS: Remove key_type::match in favour of overriding default by match_preparse
A previous patch added a ->match_preparse() method to the key type. This is
allowed to override the function called by the iteration algorithm.
Therefore, we can just set a default that simply checks for an exact match of
the key description with the original criterion data and allow match_preparse
to override it as needed.
The key_type::match op is then redundant and can be removed, as can the
user_match() function.
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
Diffstat (limited to 'security/keys/keyring.c')
| -rw-r--r-- | security/keys/keyring.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/security/keys/keyring.c b/security/keys/keyring.c index 10f0a5f2d362..253c9a0eb092 100644 --- a/security/keys/keyring.c +++ b/security/keys/keyring.c @@ -89,7 +89,6 @@ struct key_type key_type_keyring = { .preparse = keyring_preparse, .free_preparse = keyring_free_preparse, .instantiate = keyring_instantiate, - .match = user_match, .revoke = keyring_revoke, .destroy = keyring_destroy, .describe = keyring_describe, @@ -512,6 +511,15 @@ struct key *keyring_alloc(const char *description, kuid_t uid, kgid_t gid, EXPORT_SYMBOL(keyring_alloc); /* + * By default, we keys found by getting an exact match on their descriptions. + */ +int key_default_cmp(const struct key *key, + const struct key_match_data *match_data) +{ + return strcmp(key->description, match_data->raw_data) == 0; +} + +/* * Iteration function to consider each key found. */ static int keyring_search_iterator(const void *object, void *iterator_data) @@ -884,7 +892,7 @@ key_ref_t keyring_search(key_ref_t keyring, .index_key.type = type, .index_key.description = description, .cred = current_cred(), - .match_data.cmp = type->match, + .match_data.cmp = key_default_cmp, .match_data.raw_data = description, .match_data.lookup_type = KEYRING_SEARCH_LOOKUP_DIRECT, .flags = KEYRING_SEARCH_DO_STATE_CHECK, @@ -892,9 +900,6 @@ key_ref_t keyring_search(key_ref_t keyring, key_ref_t key; int ret; - if (!ctx.match_data.cmp) - return ERR_PTR(-ENOKEY); - if (type->match_preparse) { ret = type->match_preparse(&ctx.match_data); if (ret < 0) |